I just spent about 5 hours solo-ing this dungeon start to finish. Just before the final boss i disconnected form the game due to destiny server issues. I joined back within about 20 seconds of this. Continued to do the boss encounter solo. Another hour later and I've finally done it ... but oh wait. i didn't get the solo triumph or the solo spire achievement needed for Tier 11 Guardian Rank. It even says i have solo spire on my dungeon report - Please i beg just give it to me i cant do that again.